streamling-source-plugin SKILL.md skillA
streamling-source-plugin from goldsky-io/streamling is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add goldsky-io/streamling/streamling-source-plugin@git:20260625.ecf56acPins git:20260625.ecf56ac in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- goldsky-io/streamling
- Path
skills/streamling-source-plugin/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260625.ecf56ac, committed Jun 25, 2026
- Size
- 11,603 bytes
- Repository stars
- 107
- License
- a license file GitHub does not identify
Use when implementing a streamling SourcePlugin — defining the output schema and _gs_op column, generate_batch and the empty-batch means-no-data contract, decomposing a source into fetcher/buffer/runner, resumable cursor or sequential pagination that survives restart via the checkpoint state backend, and output-channel backpressure. Assumes streamling-plugin-basics.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# streamling source plugin — Agent Skill
A **source** is the head of a pipeline: it owns its schema, produces `RecordBatch`es on demand, and drives checkpointing. Sources are pull-based — streamling calls `generate_batch()` repeatedly and stops when `is_running()` is false or the pipeline drains.
**Prerequisite:** [`streamling-plugin-basics`](skill://streamling-plugin-basics) (crate setup, registration, lifecycle, errors).
## The trait
```rust
#[async_trait]
pub trait SourcePlugin: SupportsGracefulShutdown + Send + Sync {
async fn initialize(&self) -> Result<(), PluginError>;
fn output_schema(&self) -> Result<SchemaRef, PluginError>;
fn labels(&self) -> Vec<PluginLabel> { Vec::new() } // optional identity
async fn generate_batch(&self) -> Result<RecordBatch, PluginError>;
async fn process_checkpoint_marker(&self, epoch: CheckpointEpoch) -> Result<(), PluginError>;
async fn process_checkpoint_finalizer(&self, epoch: CheckpointEpoch) -> Result<(), PluginError>;
}
```
Constructor (called by `register_plugin_source!` — **no schema arg**, the source owns it):
```rust
pub fn new(
rt: PluginAsyncRuntimeObj,
…Read the whole file at its exact version.
How to install
mdr add goldsky-io/streamling/streamling-source-plugin@sha256:df684ab15d2474dcThe line at the top of this page pins the label git:20260625.ecf56ac, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_be6ggdsvwjts5zrc)
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Versions
The registry has recorded 1 version of this file, committed on Jun 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11603 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
goldsky-io/streamling · 107 stars · license a license file GitHub does not identify · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_be6ggdsvwjts5zrc GET https://markdownregistry.com/api/v1/resolve?ref=goldsky-io/streamling/streamling-source-plugin GET https://markdownregistry.com/api/v1/blob/df684ab15d2474dc8e1caa2f50491f652c3b2ea7f02a4717fa6fd3cf71612467
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.